I have a prepaid connection of TATA DoCoMo and I am using it as a Land Line because outside my home not getting proper signal everywhere. Many of the places in Kolkata there was no network coverage. Call was dropped 2 to 3 times while talking. DATA connection speed is also very poor.
Only 2g data plan is available, 3g service yet not available in Kolkata. Using this connection only for its lower rates, call rates and recharge vouchers are reasonable. Customer care service is also not to the mark as some times automatically some services got activated and amount deducted from balance. So out of 5 I can give 2 for TATA DoCoMo.